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  1. #1
    Nebunul de la butoane Expert
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    Nov 2004
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    Default pentru garlic_dog: cum calculam o antena?

    calculul unei antene se face dupa formula:

    Lambda = 300 / frecventa (MHz).

    Se poate face o antena in 1/2 Lambda sau 1/4 Lambda. Ambele antene rezoneaza pe lungimea de unda respectiva. De obicei nu se face in 1/1 Lambda pentru ca ies prea mari.

  2. #2
    Nebunul de la butoane Expert
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    Default

    pentru ce ai nevoie de antena asta? emisie sau receptie?

    http://www.radioamator.ro/articole/view.php?id=443 constructia unei antene multiband. daca vrei o poti aduce pana la 1,8 MHz, folosind formulele de calcul din pagina.

 

 

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